How to troubleshoot OS Overspeed Det. error on Omron VARISPEED F7?
If your Omron Inverter displays an OS Overspeed Det. error, and the motor speed feedback exceeded the setting, adjust the ASR settings, check the reference circuit and reference gain, and check the settings.
What should I do if my Omron VARISPEED F7 Inverter is showing a PGO PG Open error?
If your Omron Inverter displays a PGO PG Open error, and no PG (encoder) pulses have been received, fix the broken/disconnected wiring, supply power to the PG properly, and check the sequence to see if the brake is opened when the inverter starts to increase the speed.
How do I troubleshoot a BUS Option Com Err on my Omron VARISPEED F7?
If your Omron Inverter displays a BUS Option Com Err, it indicates an option card communication alarm after initial communication was established and the connection was lost. Check the connections and all user-side software configurations.
What causes 'Ext Run Active Cannot Reset' on Omron VARISPEED F7?
If your Omron Inverter displays a Ext Run Active Cannot Reset error, it was detected after a fault when a RESET command is input while the RUN command is still active. Remove the RUN signal first and reset the error.
What does EF0 Opt External Flt mean on my Omron VARISPEED F7 Inverter?
If your Omron Inverter displays an EF0 Opt External Flt error, it indicates an external fault input from Communications Option Card. Check for an external fault condition, verify the parameters, and verify communication signals.
What to do if my Omron Inverter shows a RR DynBrk Transistr error?
If your Omron Inverter displays a RR DynBrk Transistr error, it means the built-in dynamic braking transistor failed. Cycle power to the inverter. If the issue persists, replace the inverter.
What does CF Out of Control mean on my Omron VARISPEED F7?
If your Omron Inverter displays a CF Out of Control error, it indicates a control fault where a torque limit was reached continuously for 3 seconds or longer during a deceleration stop in Open Loop Vector control. Check the motor parameters.
General| Cooling Method | Forced air cooling |
|---|---|
| Input Voltage | 200-240V AC (3-phase), 380-480V AC (3-phase) |
| Control Method | V/f control, Sensorless vector control |
| Frequency Range | 400 Hz |
| Communication Protocols | DeviceNet, Profibus DP |
| Overload Capacity | 150% for 60 seconds |
| Protection Features | Overcurrent, overvoltage, undervoltage, overload, short circuit, overheating |
| Operating Temperature | -10°C to +50°C |
| Storage Temperature | -20°C to +65°C |
| Humidity | 5% to 95% (non-condensing) |
| Altitude | Up to 1000m above sea level |
| Dimensions | Varies by model |
| Weight | Varies by model |
| Braking Unit | Built-in (for certain models), optional external unit |
Introduces the Varispeed F7 series, its applications, and available models.
Provides guidelines for selecting and controlling the installation site for optimal conditions.
Shows the overall connection diagram of the inverter and its main circuits.
Details applicable wire sizes and closed-loop connectors for main circuit terminals.
Covers wire sizes and connections for control circuit terminals.
Describes the displays and functions of the digital operator, including keys and status indicators.
Explains the inverter's modes and how to switch between them.
Outlines the step-by-step procedure for performing trial operation and basic settings.
Details procedures for application confirmation, power ON, and checking display status.
Lists user parameters, their descriptions, setting ranges, and control method compatibility.
Explains setting Heavy/Normal Duty modes and their impact on carrier frequency and overload.
Describes fault detection, alarm detection, operator programming errors, and auto-tuning faults.
Provides guidance for troubleshooting parameter setting or motor operation issues.
Lists standard inverter specifications by capacity and model.
Provides detailed specifications for 200V and 400V class inverters, including electrical data.
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